Paint the wall, cabinets and replace the counter tops

We are new to the house improving projects. The goal of our small project is installing a new kitchen counter top, new stove and new oven. The kitchen is over 25 years old. To replace the stove and oven, a part of the wall needs to be fixed and the entire wall needs to be repainted. The cabinets are in great shape so we decide to keep them and re-stain them. Our first question is the sequence of the following steps

When you have removed the wallpaper that is on the wall now be sure to remove all of the old glue as it will bleed through the paint. There is a primer that will hold this back and will be a great primer once the paper is removed no matter what you do to the walls and it is GARDZ from Zinsser.

1. You might. But polyurethane does go bad in a partial can. It cures by absorbing oxygen and that includes the oxygen in the head space's air. Put it another way, what does a fresh can of polyurethane cost and what would it cost if you tried to save that much and it never cured or looked terrible and you needed to start over?

2. Do you need to, no. But the doors and drawer fronts will be much easier to strip and refinish laying flat. In addition, you don't want the fumes from most strippers in your living space. It is not good for you or your furnace. Be aware though, that warm stripper works better than cold stripper.

I would not remove the finish on the cabinets unless it was in bad shape such as peeling and flaking. If the stain has gotten knicked up in places you can buy stain markers to touch up thoes spots. If you do need to remove the finish it needs to be done in a well ventilated place such as a garage, but as the previous post noted if the temprature is cold the remover will work much slower or maybe not at all.

You should invest in new polyurethane as if it has thickened it very well may give you trouble and it is just not worth the chance.

The wall that used to be covered by wallpaper is very smooth and different than the rest of the wall with orange peel like texture. Witch one is easier: new wallpaper or creating the orange peel like texture then paint. We do not have preference and would like to choose the easiest way to make the wall looks nice.